Finding the Fourth Proportional to 775,440,028.80, 1,163,160,043.20 and 744,829,027.20
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Solution
The fourth proportional to 775,440,028.80, 1,163,160,043.20 and 744,829,027.20 is: 1,117,243,540.80
Step by Step Solution
- Step 1: Write the proportion equation
775,440,028.80 : 1,163,160,043.20 = 744,829,027.20 : x - Step 2: Convert to fraction form
775,440,028.80/1,163,160,043.20 = 744,829,027.20/x - Step 3: Cross multiply
775,440,028.80x = 1,163,160,043.20 × 744,829,027.20 - Step 4: Simplify right side
775,440,028.80x = 866,355,363,454,566,016 - Step 5: Solve for x
x = 866,355,363,454,566,016/775,440,028.80 - Step 6: Final answer
x = 1,117,243,540.80
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.